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MCP3201-CI/P

12-bit SAR ADC, 100ksps, SPI, single ch, AEC-Q100, 8-PDIP, 2.7-5.5V

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Manufacturer Part：

MCP3201-CI/P

Package：

8-PDIP (7.62 x 6.35 x 3.30 mm)

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Description

Product Overview

The MCP3201-CI/P from Microchip Technology is a 12-bit SAR ADC with SPI serial interface, 100 ksps sampling rate, and single-channel input. Operating from 2.7V to 5.5V, it features ultra-low 5 nA standby current and AEC-Q100 Grade 3 qualification. Housed in an 8-pin PDIP package for through-hole assembly.

Key Specifications

Resolution 12-bit
Sampling Rate 100 ksps @ 5V
Channels 1 (pseudo-differential)
Interface SPI (3-wire)
Supply Voltage 2.7V – 5.5V
DNL +/-1 LSB
INL +/-1 LSB (typ)
Standby Current 5 nA (typ)
AEC-Q100 Grade 3
Package 8-PDIP
Operating Temp -40 to 85 C

Features

  • 12-bit resolution with +/-1 LSB INL accuracy
  • 100 ksps sampling rate
  • Simple 3-wire SPI interface
  • Ultra-low standby current of 5 nA
  • AEC-Q100 Grade 3 qualified
  • 2.7V to 5.5V supply range

Applications

  • Sensor data acquisition
  • Automotive sensor systems
  • Battery-operated instruments
  • Industrial process control
  • Portable data loggers

The MCP3201-CI/P from Microchip Technology is a 12-bit successive approximation ADC with SPI interface, offering 100 ksps sampling rate in a simple 8-pin PDIP package. The device features a single pseudo-differential input channel, +/-1 LSB INL accuracy, and ultra-low 5 nA standby current for battery-powered applications. AEC-Q100 Grade 3 qualified, it is suitable for automotive sensor systems. The 2.7V to 5.5V supply range allows direct interface with 3.3V and 5V logic systems.

The MCP3201-CI/P uses a successive approximation register (SAR) architecture. When CS goes low, the device samples the input voltage on the VIN+ pin using an internal sample-and-hold capacitor. The SAR algorithm performs a binary search: the internal DAC generates a trial voltage, the comparator determines if the input is above or below, and the corresponding bit is set. This repeats for all 12 bits from MSB to LSB, completing the conversion in approximately 12 clock cycles. The result is clocked out on DOUT synchronized to CLK, MSB first.

Pin Name Type Function
1 VDD Power Supply voltage (2.7-5.5V)
2 VIN+ Input Non-inverting analog input
3 VREF Input Reference voltage input
4 VSS Ground Ground
5 DGND Ground Digital ground
6 DOUT Output Serial data output (SPI)
7 CLK Input Serial clock input
8 CS/SHDN Input Chip select / shutdown
  • Sensor interface: Converting analog sensor outputs to digital for MCU processing
  • Automotive systems: AEC-Q100 qualified ADC for vehicle sensor data acquisition
  • Battery instruments: Ultra-low standby current for portable measurement devices
  • Industrial control: Process variable monitoring with 12-bit resolution
Manufacturer Part Number Package Notes
Microchip MCP3201-CI/SN SOIC-8 SMD version, same function
Microchip MCP3202-CI/P PDIP-14 2-channel, 12-bit
TI ADS7042IRUGR X2QFN-8 12-bit, 1Msps, ultra-small
Maxim MAX11102AUB+ uMAX-10 12-bit, 200ksps, SPI
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Address: Room 2919, Guoli Building, Huaqiang North, Futian District, Shenzhen, Guangdong, China
 

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